1 a narrow gorge with a stream running through it [syn: gulch]
2 watercourse that consists of an open artificial chute filled with water for power or for carrying logs
A flume is an open artificial water channel, that leads water from a diversion dam or weir completely aside a natural flow, often an elevated box structure (typically wood) that follows the natural contours of the land. These have been extensively used in hydraulic mining and working placer deposits for gold, tin and other heavy minerals. They are also used in the transportation of logs in the logging industry, electric power generation and to power various mill operations by the use of a waterwheel.
Specialist flumesA flume can be used to measure the rate of flow. Specific designs include the Parshall, Palmer-Bowlus, Trapezoidal, and H-Flume. See flow measurement#open channel flow measurement. A sewer pipe can be used as a flow measurement flume by using the Manning formula.
In competitive swimming, specialized flumes with transparent sides are often employed by coaches to analyze a swimmer's technique. The speed of the flow is variable to accommodate the full spectrum of swimming styles and ability.
Flumes are also used in The Pendragon Adventure, as a thing to redirect travelers through space and time.
flume in German: Riese (Holz)
flume in French: Flume
abysm, abyss, aqueduct, arroyo, avenue, bed, blowhole, box canyon, breach, break, canal, canyon, cavity, channel, chap, chasm, check, chimney, chink, chute, cleft, cleuch, clough, col, coulee, couloir, crack, cranny, creek bed, crevasse, crevice, culvert, cut, cwm, debouch, defile, dell, dike, ditch, donga, door, draw, dry bed, egress, emunctory, escape, estuary, excavation, exhaust, exit, fault, fissure, flaw, floodgate, fracture, furrow, gap, gape, gash, gorge, groove, gulch, gulf, gully, gullyhole, headrace, hole, incision, irrigation ditch, joint, kloof, leak, loophole, moat, notch, nullah, opening, out, outcome, outfall, outgate, outgo, outlet, pass, passage, pore, port, race, ravine, rent, rift, rime, river bed, riverway, runnel, rupture, sally port, scissure, seam, slit, slot, sluice, spillbox, spillway, spiracle, split, spout, stream bed, streamway, swash, swash channel, tailrace, tap, trench, valley, vent, ventage, venthole, void, vomitory, wadi, water carrier, water channel, water furrow, water gap, water gate, watercourse, waterway, waterworks, way out, weir